6399070843 has 18 divisors (see below), whose sum is σ = 7203759332. Its totient is φ = 5676926640.

The previous prime is 6399070831. The next prime is 6399070849. The reversal of 6399070843 is 3480709936.

It is not a de Polignac number, because 6399070843 - 2⁹ = 6399070331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6399070849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5769573 + ... + 5770681.

Almost surely, 2^6399070843 is an apocalyptic number.

6399070843 is a deficient number, since it is larger than the sum of its proper divisors (804688489).

6399070843 is an equidigital number, since it uses as much as digits as its factorization.

6399070843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 6399070843 is about 79994.1925579601. The cubic root of 6399070843 is about 1856.5456798309.

The spelling of 6399070843 in words is "six billion, three hundred ninety-nine million, seventy thousand, eight hundred forty-three".